Current distributions in stripe Majorana junctions

Abstract

We calculate current and density distributions in stripe (2D planar) junctions between normal and Majorana nanowires having a finite ($y$) transverse length. In presence of a magnetic field with vertical and in-plane components, the $y$-symmetry of the charge current distribution in the normal lead changes strongly across the Majorana phase transition: from center-symmetric if a Majorana mode is present to laterally-shifted (as expected by the Hall effect) if the field is tilted such as to destroy the Majorana mode due to the projection rule. We compare quasi-particle and charge distributions of current and density, as well as spin magnetizations. The Majorana mode causes opposite spin accumulations on the junction and the emergence of a spin current.

8 pages, 5 figures. Fixed Fig.1 and Fig3 bounding boxes

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Cited by in corpus (8)

• Magneto-conductance of topological junctions based on two-dimensional electron gases reveals Majorana phases
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• Skyrmion spin transfer torque due to current confined in a nanowire
• Fabry-Pérot interferometry with gate-tunable 3D topological insulator nanowires
• Topological suppression of magnetoconductance oscillations in NS junctions
• Torque field and skyrmion movement by spin transfer torque in a quasi-2d interface in presence of strong spin-orbit interaction
• Spatial coupling of quantum-anomalous-Hall and chiral-Majorana modes
• Magnetic orbital motion and 0.5$e^2/h$ conductance of quantum-anomalous-Hall hybrid strips